Eric G. Hurley, Nutrient Management Specialist USDA-Natural Resources Conservation Service
Natural Resources Conservation Service2
Nutrient Delivery to the Gulf of Mexico Natural Resources Conservation Service5 (A) Total Nitrogen(B) Total Phosphorus Alexander, et al, Environ. Sci. Tech., 2008
Why Update? Natural Resources Conservation Service6
Des Moines Water Works has the largest nitrate removal facility in the world
Conservation Effects Assessment Project Upper Mississippi River Basin report, June Missouri River report is expected soon
Drivers in Iowa Nutrient Mgt Hypoxia in the Gulf Iowa drinking water quality Quality of Iowa’s lakes and streams Manure stinks Economics?
Response National Nutrient Management Strategy EQIP implementation released 9/1/2010 Strategy released 10/15/2010 Based around a set of core practices (Basic & Enhanced) Mississippi Basin River Initiative $80 million/year for four years Enhanced EQIP payments All EQIP contracts must include nutrient management
Response Iowa Nutrient Reduction Strategy The Iowa Department of Agriculture and Land Stewardship requested assistance from Iowa State University to: Define technical options to reduce Iowa’s export of nutriens Determine how to implement a control effort
What’s New in Iowa? Focus on nitrogen along with phosphorus Focus on all nutrient inputs along with manure Look at many other treatment options Nutrient treatment wetlands Cover crops Perennials in rotation Bioreactors Engage many more producers Still very much a work in progress
Eric G. Hurley Nutrient Management Specialist USDA-Natural Resources Conservation Service 210 Walnut ST, Room 693 Des Moines IA